Stalin didn't trust Hitler that's a lie. Stalin wanted to buy time to ready and prepare the red army by trying to delay the war for as long as possible and that meant trying to play nice with Hitler while Stalin brandished a knife behind his back. The USSR only ever signed the Molotov-Ribbentrop non-aggresion pact after the UK and France stubbornly refused to join in an anti-fascist pact against the Nazis.

The Soviet move to occupy Poland was no crime it was a practical necessity to maintain a buffer ground between the wehrmacht and the USSR so that the fascists couldn't march right up to their borders. What do you imagine the alternative was to occupying Eastern Poland as part of a partitioning agreement? It was the fascists seizing it for themselves.

This rubbish gibberish about starving people to death is lies also. During the famine the Soviets distributed extensive relief aid and heavily cut back their grain exports but the damage was already done by the time they realized how dire the famine was and mobilized a response.